Though many of the cards on this list were never major competitive threats in the early days of the TCG , Dark Blastoise was an exception, as it served as a strong finisher in Rain Dance decks that employed Base Set Blastoises eponymous Pokemon Power: Rain Dance
And if your opponent uses a card like Ash Blossom & Joyous Spring and you negate it using Psy-Framegear Gamma, you can use this card to Synchro summon a level 8 monster
As far as traps are concerned, this area is also pretty normal
Charizard Celebrations 4/25 : A tribute to the Base Set legacy, adored by new-gen collectors
This card is considered an Ultra Rare, and it depicts Latias and Latio flying side-by-side, creating a heart between them as they boop noses
Identify and explain how each principle of art was used in your artwork